2 # SPDX-License-Identifier: GPL-2.0
4 # Copyright (C) Google LLC, 2020
6 # Author: Nathan Huckleberry <nhuck@google.com>
8 """A helper routine run clang-tidy and the clang static-analyzer on
14 import multiprocessing
19 def parse_arguments():
20 """Set up and parses command-line arguments.
22 args: Dict of parsed args
23 Has keys: [path, type]
25 usage = """Run clang-tidy or the clang static-analyzer on a
26 compilation database."""
27 parser = argparse.ArgumentParser(description=usage)
29 type_help = "Type of analysis to be performed"
30 parser.add_argument("type",
31 choices=["clang-tidy", "clang-analyzer"],
33 path_help = "Path to the compilation database to parse"
34 parser.add_argument("path", type=str, help=path_help)
36 return parser.parse_args()
46 def run_analysis(entry):
47 # Disable all checks, then re-enable the ones we want
48 checks = "-checks=-*,"
49 if args.type == "clang-tidy":
50 checks += "linuxkernel-*"
52 checks += "clang-analyzer-*"
53 checks += ",-clang-analyzer-security.insecureAPI.DeprecatedOrUnsafeBufferHandling"
54 p = subprocess.run(["clang-tidy", "-p", args.path, checks, entry["file"]],
55 stdout=subprocess.PIPE,
56 stderr=subprocess.STDOUT,
57 cwd=entry["directory"])
59 sys.stderr.buffer.write(p.stdout)
63 args = parse_arguments()
65 lock = multiprocessing.Lock()
66 pool = multiprocessing.Pool(initializer=init, initargs=(lock, args))
67 # Read JSON data into the datastore variable
68 with open(args.path, "r") as f:
69 datastore = json.load(f)
70 pool.map(run_analysis, datastore)
73 if __name__ == "__main__":